D'Agostino H B, vanSonnenberg E, Sanchez R B, Goodacre B W, Casola G
Department of Radiology, University of California San Diego Medical Center 92103.
Radiology. 1992 Feb;182(2):576-7. doi: 10.1148/radiology.182.2.1732986.
Dislodgment is a major drawback with large-bore Malecot catheters. A locking mechanism with a suture affixed to the distal portion of the mushroom tip is described. In a 32-month period, 17 Malecot catheters with locking mechanisms were placed in 15 patients. One catheter dislodged as a result of suture failure. A variation in design prevented subsequent failure of sutures. This simple locking mechanism prevents collapse of the catheter wings and thereby maintains catheter placement.
大口径马勒科特导管的一个主要缺点是移位。本文描述了一种在蘑菇头远端固定缝线的锁定机制。在32个月的时间里，为15名患者置入了17根带有锁定机制的马勒科特导管。有一根导管因缝线故障而移位。设计上的改进防止了后续缝线故障。这种简单的锁定机制可防止导管翼片塌陷，从而维持导管的位置。
